Have you all heard of Jepps? Took Airservices long enough to realise the format works and fits all docs (AIP ERSA DAPS) into 2 binders!! DERRR
Yes, but some of us don't have enough space in the cockpit to actually carry an encyclopedia-sized book for reference. (Not that anyone should need to refer to AIP while airborne in any event. If they do, their professional education is sadly lacking.)